src/hotspot/share/gc/cms/concurrentMarkSweepGeneration.cpp

@@ -2643,11 +2643,11 @@
   CMSSynchronousYieldRequest yr;
   assert(!tlab, "Can't deal with TLAB allocation");
   MutexLocker x(freelistLock(), Mutex::_no_safepoint_check_flag);
   expand_for_gc_cause(word_size*HeapWordSize, MinHeapDeltaBytes, CMSExpansionCause::_satisfy_allocation);
   if (GCExpandToAllocateDelayMillis > 0) {
-    os::sleep(Thread::current(), GCExpandToAllocateDelayMillis, false);
+    os::naked_sleep(GCExpandToAllocateDelayMillis);
   }
   return have_lock_and_allocate(word_size, tlab);
 }
 
 void ConcurrentMarkSweepGeneration::expand_for_gc_cause(

@@ -2682,11 +2682,11 @@
     expand_for_gc_cause(word_sz*HeapWordSize, MinHeapDeltaBytes, CMSExpansionCause::_allocate_par_lab);
     // Now go around the loop and try alloc again;
     // A competing par_promote might beat us to the expansion space,
     // so we may go around the loop again if promotion fails again.
     if (GCExpandToAllocateDelayMillis > 0) {
-      os::sleep(Thread::current(), GCExpandToAllocateDelayMillis, false);
+      os::naked_sleep(GCExpandToAllocateDelayMillis);
     }
   }
 }
 
 

@@ -2709,11 +2709,11 @@
     expand_for_gc_cause(refill_size_bytes, MinHeapDeltaBytes, CMSExpansionCause::_allocate_par_spooling_space);
     // Now go around the loop and try alloc again;
     // A competing allocation might beat us to the expansion space,
     // so we may go around the loop again if allocation fails again.
     if (GCExpandToAllocateDelayMillis > 0) {
-      os::sleep(Thread::current(), GCExpandToAllocateDelayMillis, false);
+      os::naked_sleep(GCExpandToAllocateDelayMillis);
     }
   }
 }
 
 void ConcurrentMarkSweepGeneration::shrink(size_t bytes) {

@@ -3542,11 +3542,11 @@
   //
   // Tony 2006.06.29
   for (unsigned i = 0; i < CMSCoordinatorYieldSleepCount &&
                    ConcurrentMarkSweepThread::should_yield() &&
                    !CMSCollector::foregroundGCIsActive(); ++i) {
-    os::sleep(Thread::current(), 1, false);
+    os::naked_short_sleep(1);
   }
 
   ConcurrentMarkSweepThread::synchronize(true);
   _bit_map_lock->lock_without_safepoint_check();
   _collector->startTimer();

@@ -5539,11 +5539,11 @@
 
         // See the comment in coordinator_yield()
         for (unsigned i = 0; i < CMSYieldSleepCount &&
                          ConcurrentMarkSweepThread::should_yield() &&
                          !CMSCollector::foregroundGCIsActive(); ++i) {
-          os::sleep(Thread::current(), 1, false);
+          os::naked_short_sleep(1);
         }
 
         ConcurrentMarkSweepThread::synchronize(true);
         bitMapLock()->lock_without_safepoint_check();
         startTimer();

@@ -5993,11 +5993,11 @@
   for (unsigned i = 0;
        i < CMSYieldSleepCount &&
        ConcurrentMarkSweepThread::should_yield() &&
        !CMSCollector::foregroundGCIsActive();
        ++i) {
-    os::sleep(Thread::current(), 1, false);
+    os::naked_short_sleep(1);
   }
 
   ConcurrentMarkSweepThread::synchronize(true);
   _freelistLock->lock_without_safepoint_check();
   _bit_map->lock()->lock_without_safepoint_check();

@@ -6148,11 +6148,11 @@
 
   // See the comment in coordinator_yield()
   for (unsigned i = 0; i < CMSYieldSleepCount &&
                    ConcurrentMarkSweepThread::should_yield() &&
                    !CMSCollector::foregroundGCIsActive(); ++i) {
-    os::sleep(Thread::current(), 1, false);
+    os::naked_short_sleep(1);
   }
 
   ConcurrentMarkSweepThread::synchronize(true);
   _freelistLock->lock_without_safepoint_check();
   _bitMap->lock()->lock_without_safepoint_check();

@@ -6215,11 +6215,11 @@
 
   // See the comment in coordinator_yield()
   for (unsigned i = 0; i < CMSYieldSleepCount &&
                        ConcurrentMarkSweepThread::should_yield() &&
                        !CMSCollector::foregroundGCIsActive(); ++i) {
-    os::sleep(Thread::current(), 1, false);
+    os::naked_short_sleep(1);
   }
 
   ConcurrentMarkSweepThread::synchronize(true);
   _bit_map->lock()->lock_without_safepoint_check();
   _collector->startTimer();

@@ -6366,11 +6366,11 @@
 
   // See the comment in coordinator_yield()
   for (unsigned i = 0; i < CMSYieldSleepCount &&
                        ConcurrentMarkSweepThread::should_yield() &&
                        !CMSCollector::foregroundGCIsActive(); ++i) {
-    os::sleep(Thread::current(), 1, false);
+    os::naked_short_sleep(1);
   }
 
   ConcurrentMarkSweepThread::synchronize(true);
   _bitMap->lock()->lock_without_safepoint_check();
   _collector->startTimer();

@@ -6980,11 +6980,11 @@
 
   // See the comment in coordinator_yield()
   for (unsigned i = 0; i < CMSYieldSleepCount &&
                        ConcurrentMarkSweepThread::should_yield() &&
                        !CMSCollector::foregroundGCIsActive(); ++i) {
-    os::sleep(Thread::current(), 1, false);
+    os::naked_short_sleep(1);
   }
 
   ConcurrentMarkSweepThread::synchronize(true);
   bml->lock_without_safepoint_check();
 

@@ -7545,11 +7545,11 @@
 
   // See the comment in coordinator_yield()
   for (unsigned i = 0; i < CMSYieldSleepCount &&
                        ConcurrentMarkSweepThread::should_yield() &&
                        !CMSCollector::foregroundGCIsActive(); ++i) {
-    os::sleep(Thread::current(), 1, false);
+    os::naked_short_sleep(1);
   }
 
   ConcurrentMarkSweepThread::synchronize(true);
   _freelistLock->lock_without_safepoint_check();
   _bitMap->lock()->lock_without_safepoint_check();

@@ -7843,19 +7843,18 @@
   if (_overflow_list == NULL) {
     return false;
   }
   // Grab the entire list; we'll put back a suffix
   oop prefix = cast_to_oop(Atomic::xchg((oopDesc*)BUSY, &_overflow_list));
-  Thread* tid = Thread::current();
   // Before "no_of_gc_threads" was introduced CMSOverflowSpinCount was
   // set to ParallelGCThreads.
   size_t CMSOverflowSpinCount = (size_t) no_of_gc_threads; // was ParallelGCThreads;
   size_t sleep_time_millis = MAX2((size_t)1, num/100);
   // If the list is busy, we spin for a short while,
   // sleeping between attempts to get the list.
   for (size_t spin = 0; prefix == BUSY && spin < CMSOverflowSpinCount; spin++) {
-    os::sleep(tid, sleep_time_millis, false);
+    os::naked_sleep(sleep_time_millis);
     if (_overflow_list == NULL) {
       // Nothing left to take
       return false;
     } else if (_overflow_list != BUSY) {
       // Try and grab the prefix